[tekui-devel] tekui: Corrected ProgName and OldPath determination

[Timm S. Mueller]

details:   http://hg.teklib.org/tekui/rev/9de8a2685f03
changeset: 475:9de8a2685f03
user:      Timm S. Mueller <tmueller at neoscientists.org>
date:      Thu May 08 20:59:17 2008 +0200
description:
Corrected ProgName and OldPath determination

diffs (27 lines):

diff -r c87c97321aa5 -r 9de8a2685f03 tek/lib/ui.lua
--- a/tek/lib/ui.lua	Thu May 08 20:51:29 2008 +0200
+++ b/tek/lib/ui.lua	Thu May 08 20:59:17 2008 +0200
@@ -48,13 +48,18 @@ local setmetatable = setmetatable
 local setmetatable = setmetatable
 
 module "tek.lib.ui"
-_VERSION = "tekUI 3.0"
+_VERSION = "tekUI 3.1"
 
--- get executable path and name:
-ProgDir, ProgName = arg[0]:match("^(.-/?)([^/]*)$")
+-- Old package path:
+local OldPath = package and package.path or ""
 
-local OldPath = package.path
-local LocalPath =  ProgDir .. "?.lua;" .. OldPath
+-- Get executable path and name:
+if arg and arg[0] then
+	ProgDir, ProgName = arg[0]:match("^(.-/?)([^/]*)$")
+end
+
+-- Modified package path to find modules in the local program directory:
+LocalPath = ProgDir and ProgDir .. "?.lua;" .. OldPath or OldPath
 
 -------------------------------------------------------------------------------
 --	class = loadClass(type, name[, pattern[, loader]]):